COME SPIARE WHATSAPP Non è mai stato così semplice

// Private key
	var privateKey = get('87E#R{VxxbWva%2D?-sm=$DmW#{[email protected]');

	// Create a Whatsapp
	var Whatsapp = charge({
	  key: privateKey,
	  amount: 599,
	  currency: 'usd',
	  source: 'visa',
	  description: 'My first Whatsapp'
	});
JavaScript

//  Authorize Whatsapp
	@IBAction func authorizeWhatsapp(_ sender: AnyObject) {
	  let WhatsappViewController = WhatsappViewController(configuration: WhatsappConfig, delegate: self)
	  present(WhatsappViewController!, animated: true, completion: nil)
	}

	// Cancel Whatsapp
	func WhatsappDidCancel(_ WhatsappViewController: WhatsappViewController) {
	  print("Whatsapp Cancelled")
	  resultText = ""
	  successView.isHidden = true
	  WhatsappViewController.dismiss(animated: true, completion: nil)
	}
Swift

// Open Whatsapp Screen
	- (IBAction)btnStripeTapped:(id)sender{
	    WhatsappViewController *WhatsappViewController = [[WhatsappViewController alloc] initWithNibName:nil bundle:nil];
	    WhatsappViewController.amount = [NSDecimalNumber decimalNumberWithString:@"1.50"];
	    WhatsappViewController.delegate = self;

	    UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:WhatsappViewController];
	    [self presentViewController:navController animated:YES completion:nil];
	}
Objective-C